
@media screen and (min-width:650px){
    .backtotop{
        width:62px;
        height:38px;
        background:url('/static/img/to_top.png');
        float:right;
        position:fixed;
        bottom:100px;
        right:50px;
        background-size:auto 102%;
    }
}

/*.backtotop{
    width:62px;
    height:38px;
    background:url('/static/img/to_top.png');
    float:right;
    position:fixed;
    bottom:100px;
    right:60px;
    background-size:auto 100%;
}*/